Citation: Aj. Booth et Olf. Weyl, Histological validation of gonadal macroscopic staging criteria for Labeo cylindricus (Pisces : Cyprinidae), AFR ZOOL, 35(2), 2000, pp. 223-231
Citation: Olf. Weyl et T. Hecht, A successful population of largemouth bass, Micropterus salmoides, in a subtropical lake in Mozambique, ENV BIOL F, 54(1), 1999, pp. 53-66
Citation: Olf. Weyl et T. Hecht, The biology of Tilapia rendalli and Oreochromis mossambicus (Pisces : Cichlidae) in a subtropical lake in Mozambique, S AFR J ZOO, 33(3), 1998, pp. 178-188